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Mouthpiece

A technology of braces and dentition, which is applied in dentistry, orthodontics, orthodontics, etc., and can solve problems such as low followability and poor comfort in the mouth

Active Publication Date: 2020-06-09
MITSUI CHEM INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, there is a problem in that when a force generated by molars etc. is applied, especially when a force is applied in a lateral direction (a direction parallel to the dentition surface) to an attachment member etc. (holding pad, fixing part, etc.), the followability is low. , poor oral comfort

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0415] -Examples 1B and 2B, and Comparative Examples 1B and 2B-

[0416] From the sheet used for the formation of the layer (A), a lithographic plate (A) of 7 cm in length and 2 cm in width was cut out.

[0417] Using "Orthocryl" used in the formation of the layer (B), a 1 mm thick sheet was produced under the same conditions as the production conditions of the layer (B) (volume ratio of powder to liquid, polymerization conditions, etc.), and from the obtained sheet A flat plate (B) of 7 cm in length and 2 cm in width was cut out.

[0418] Adhesive resin (3M DP-8010Blue) is applied to a thickness of 0.1 mm in a region of 1 cm in length and 2 cm in width of the lithographic plate (A), and then the lithographic plate (A) and the lithographic plate (B) are bonded through the adhesive resin. bonding. After 24 hours from bonding, the lithographic plate (B) was stretched in a direction perpendicular to the lithographic plate (A) using ZTS-1000 manufactured by IMADA until it broke,...

Embodiment 1A

[0432] As the innermost layer (T1) sheet, a commercially available olefin-based soft polymer TAFMER DF-810 (manufactured by Mitsui Chemicals Co., Ltd.) was used to produce a soft olefin single-layer sheet with a thickness of 1 mm. In addition, the innermost layer ( T1 ) corresponds to the above-mentioned LI layer.

[0433] As a sheet for the outermost layer (T2), a 1-mm-thick single-layer sheet of isotactic polypropylene (Prime Polypro [registered trademark] F327 (manufactured by Prime Polymer Co., Ltd.)) was prepared. In addition, the innermost layer ( T2 ) corresponds to the above-mentioned LO layer.

[0434] The sheet for the innermost layer (T1) and the sheet for the outermost layer (T2) were laminated and thermally fused to obtain an olefin-based laminated sheet with a thickness of 2 mm.

[0435] The mandible of INVICTUS manufactured by Nissin Co., Ltd. was used as a model for dental braces, and Model Capture Try of Co., Ltd. Matsukaze was used as a molding machine for d...

Embodiment 2A、3A

[0437] TAFMER DF-810 used in the production of the innermost layer (T1) sheet was changed to NOTIO SN-0285 (manufactured by Mitsui Chemicals Co., Ltd.) and VISTAMAXX 6102 (manufactured by ExxonMobil Corporation), respectively. In the same manner as in Example 1A, an olefin-based laminate and a mouthpiece were obtained.

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Abstract

The invention relates to a mouthpiece worn on the tooth row has a layer structure including a layer (A) positioned on the tooth row side when worn on the tooth row of the mouthpiece and a layer (B) which is layered on the layer (A) and positioned opposite to the tooth row seen from the layer (A) when worn. The layer (A) contains at least one kind of elastomer selected from a group composed of acrylic thermoplastic elastomer and polyester-based thermoplastic elastomer. The layer (B) contains at least one kind of high polymer selected from a group composed of poly(meth)acrylate and polyester. Adhesive strength between the layer (A) and the layer (B) is 30 MPa or more, flexural modulus of the layer (A) ranges from 50 MPa to 300 MPa, flexural modulus of the layer (B) is higher than flexural modulus of the layer (A), and difference between the flexural modulus of the layer (A) and the flexural modulus of the layer (B) ranges from 1000 MPa to 3000 MPa.

Description

[0001] This application is a divisional application of the original application, the application number is 201780014449.5, the application date is February 27, 2017, and the invention title is "Braces, Sheets for Manufacturing Braces of Braces, and Manufacturing Method for Braces". technical field [0002] The present invention relates to a mouthpiece, a sheet for manufacturing a mouthpiece of the mouthpiece, and a method for manufacturing the mouthpiece. Background technique [0003] It is said that the main cause of obstructive sleep apnea syndrome is that the mandible recedes and blocks the airway, and various braces, etc. have been proposed to improve obstructive sleep apnea syndrome. Braces and the like protrude the lower jaw forward compared to the upper jaw when worn, thereby keeping the airway wide, thereby improving apnea and snoring during sleep. [0004] For example, an oral appliance is disclosed that has an upper tray and a lower tray that fit over each of the p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F5/56A63B71/08A61C7/08
CPCA61F5/566A63B71/085A61C7/08A61F2005/563A61C7/36C08L23/0815C08L23/12
Inventor 雪田崇史山本真纪永井秀幸土谷稳史
Owner MITSUI CHEM INC
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